IP-Based Authentication Bypass in phpMyAdmin - CVE-2016-6624
Summary
ALPINE-CVE-2016-6624: An issue was discovered in phpMyAdmin involving improper enforcement of the IP-based authentication rules. Affects phpmyadmin versions < 4.4.15.8-r0. Fixed in 4.4.15.8-r0. How to fix ↓
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Background
phpMyAdmin is a widely-used open-source tool for managing MySQL databases through a web interface. It allows users to perform various database operations, such as creating, modifying, and deleting databases and tables, executing SQL queries, and managing user permissions. The tool is popular among developers and database administrators for its ease of use and extensive features. However, it is susceptible to vulnerabilities, including improper enforcement of IP-based authentication rules, which can lead to unauthorized access.
Vulnerability Detail
The vulnerability identified as CVE-2016-6624 arises from improper enforcement of IP-based authentication rules in phpMyAdmin. When used in an environment with IPv6 and a proxy server, the system may mistakenly allow connections from unauthorized attacking computers if the proxy server's IP is within the allowed range. This flaw can lead to unauthorized access to sensitive database management features, posing significant security risks.
How To Fix
Minimum fixed version
4.4.15.8-r0
This is the first release that contains the fix.
sudo apk add --upgrade phpmyadminTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, consider restricting access to phpMyAdmin by implementing additional firewall rules or using VPNs to limit exposure to trusted IP addresses only. This can help mitigate the risk until the package is updated.
Conclusion
CVE-2016-6624 is a significant vulnerability in phpMyAdmin that can lead to unauthorized access due to flaws in IP-based authentication. It is crucial to update to the latest patched version to secure your database management environment. Additionally, employing workarounds can help mitigate risks until an update is applied.
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FAQ
CVE-2016-6624 is a vulnerability in phpMyAdmin that allows unauthorized access due to improper enforcement of IP-based authentication rules.
All 4.6.x versions prior to 4.6.4, 4.4.x versions prior to 4.4.15.8, and 4.0.x versions prior to 4.0.10.17 are affected by this vulnerability.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The CVSS score for CVE-2016-6624 is 5.9, indicating a moderate level of severity.
If immediate updates are not possible, implement additional security measures such as restricting access through firewalls or VPNs to mitigate risks.
References
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